Home / 104,186.95-143,778.05-56,440.49

Finding the Fourth Proportional to 104,186.95, 143,778.05 and 56,440.49

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Solution

The fourth proportional to 104,186.95, 143,778.05 and 56,440.49 is: 77,887.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,186.95 : 143,778.05 = 56,440.49 : x
  2. Step 2: Convert to fraction form
    104,186.95/143,778.05 = 56,440.49/x
  3. Step 3: Cross multiply
    104,186.95x = 143,778.05 × 56,440.49
  4. Step 4: Simplify right side
    104,186.95x = 8,114,903,121.28
  5. Step 5: Solve for x
    x = 8,114,903,121.28/104,186.95
  6. Step 6: Final answer
    x = 77,887.91

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.